I've found something that, in "/System/Library/Extensions/" ApplePS2Controller.kext & AppleACPIPS2Nub.kext icon label are yellow. I think my problem is forcing them to turn into yellow. Kext files that turned into yellow are listed below:
I've tried VoodooPS2Controller.kext installing with Kext Helper but, no success. Error messages start coming right after installing new kext or, deleting any kext. It says that,
System extension cannot be used
The system extension "/System/Library/Extensions/
-kextnames-.kext" was installed improperly
and cannot be used. Please try reinstalling it, or
contact the product's vendor for an update.
It comes for all those yellow labeled kexts. Pictures of error messages are attached with the *.rar file given below.
I've also tried my mouse with USB to PS2 converter as a USB mouse.